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    Self-organization, physicochemical, and biological properties of diluted aqueous systems of malic acid

    Year: 2023

    Journal: Russian Chemical Bulletin, Volume 72, 2023-09-01

    Authors: Ryzhkina, I. S.; Murtazina, L. I.; Kostina, L. A.; Meleshenko, K. A.; Dokuchaeva, I. S.; Kuznetsova, T. V.; Petrov, A. M.

    Keywords: fluorescence; dispersed system; green algae Chlorella vulgaris; low calculated concentrations; malic acid; seeds of wheat Triticum vulgare; self-organization

    A complex of physicochemical methods determined the relationship between the non-monotonic concentration dependencies of the size, ζ-potential of the dispersed phase, surface tension, fluorescence intensity (λex = 230 nm, λem = 340 nm) of diluted aqueous systems of malic acid (MA) and their effect on the population of green algae Chlorella vulgaris and root growth of wheat Triticum vulgare. It was shown that the non-toxic, selective effect of MA systems on plant organisms occurs in the range of calculated concentrations, at which the greatest changes in the parameters of the dispersed phase, the surface tension, and the fluorescence intensity of the systems are observed.
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